App icon and launch screen in iOS Swift - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of an app icon in iOS apps?

An app icon visually represents the app on the device's home screen and app store. It helps users quickly identify the app among others.

beginner

What is a launch screen in an iOS app?

A launch screen is a temporary screen shown when the app starts. It gives users immediate feedback that the app is loading and improves perceived performance.

intermediate

Where do you set the app icon images in an Xcode project?

App icon images are set in the Assets.xcassets folder under the AppIcon image set. You provide different sizes for various device resolutions.

intermediate

How do you create a launch screen in an iOS app?

You create a launch screen by adding a LaunchScreen.storyboard file in Xcode and designing a simple UI that appears while the app loads.

intermediate

Why should launch screens avoid complex animations or heavy content?

Launch screens should be simple and static to load quickly and avoid delaying app startup. Complex content can slow down the launch and frustrate users.

Where do you place different sizes of app icons in an iOS project?

A In the main.swift file

B In the LaunchScreen.storyboard

C In the Info.plist file

D In the Assets.xcassets under AppIcon

App icons are managed in the Assets.xcassets folder inside the AppIcon image set.

What is the main role of the launch screen in an iOS app?

A To provide immediate visual feedback during app startup

B To display the app icon in full screen

C To replace the home screen after app launch

D To show a loading indicator while the app starts

The launch screen provides immediate visual feedback that the app is starting, improving user experience.

Which file type is commonly used to design the launch screen in Xcode?

A .storyboard

B .swift

C .plist

D .xcassets

Launch screens are designed using a storyboard file, typically named LaunchScreen.storyboard.

Why should app icons be provided in multiple sizes?

A To animate the icon on the home screen

B To support different device screen resolutions

C To allow users to choose their favorite icon size

D To reduce app size

Multiple icon sizes ensure the app looks sharp on all devices with different screen resolutions.

What should you avoid including in a launch screen?

A Simple static images

B App name text

C Complex animations or heavy content

D Background color

Complex animations or heavy content can delay app startup and should be avoided in launch screens.

Explain how to set up an app icon in an iOS app project using Xcode.

Think about where images are stored and why different sizes matter.

Describe the purpose and best practices for creating a launch screen in an iOS app.

Consider what users see when the app starts and how to keep it fast.